MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 93838af8cffda60213137f5bd1fb3dd149d2d1d58133a5911c277829f8f7f95b. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 15


Intelligence 15 IOCs YARA 4 File information Comments
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SHA256 hash: 93838af8cffda60213137f5bd1fb3dd149d2d1d58133a5911c277829f8f7f95b
SHA3-384 hash: 34ca364da78453de5ceafe25136fd5ee001dc294297f1f07082ec2e33277c034a1ea559bd956866da2a5722de83c54e5
SHA1 hash: 6c330dffb9f3f4f9050480cfce8e48ca841d6f9b
MD5 hash: 3db5f909603e571b42d5b2d846b3f369
humanhash: white-twelve-bluebird-sink
File name:SKMB56201.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:960'000 bytes
First seen:2022-08-22 09:35:10 UTC
Last seen:2022-08-23 08:06:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:GEvBZodCsLQTE/4yO2QVjPvks/kYhcYvjRNWM2:xodCsLQM4yO2QVt3h92
TLSH T1F215CF9CABA6C455DC2E0278D0A655F41222EC15F62AEE8FB5CBFDE93E323BD4445103
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 4d4d4dc4c0507495 (7 x Loki, 6 x AgentTesla, 5 x Formbook)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
281
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
SKMB56201.exe
Verdict:
Malicious activity
Analysis date:
2022-08-22 09:38:01 UTC
Tags:
formbook
Link:
https://app.any.run/tasks/4b2efbde-0994-4a19-88d3-67163d8e50b5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/300187/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen3.21392.15358.30293.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63034e0b05ef0c24e41deb86/reports/9886ced1-ecc2-41d5-9ddb-c4443a5b6d64/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cc81156b-544c-478e-b4c9-9128be758878
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1055422
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 687939 Sample: SKMB56201.exe Startdate: 22/08/2022 Architecture: WINDOWS Score: 100 31 www.flightfright.com 2->31 37 Multi AV Scanner detection for domain / URL 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 8 other signatures 2->43 11 SKMB56201.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\SKMB56201.exe.log, ASCII 11->29 dropped 53 Tries to detect virtualization through RDTSC time measurements 11->53 55 Injects a PE file into a foreign processes 11->55 15 SKMB56201.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 xu7ad00214a8n10.life 216.240.130.67, 49716, 80 MULTA-ASN1US United States 18->33 35 www.xu7ad00214a8n10.life 18->35 45 System process connects to network (likely due to code injection or exploit) 18->45 22 cmmon32.exe 18->22         started        signatures11 process12 signatures13 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49 51 Tries to detect virtualization through RDTSC time measurements 22->51 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/93838af8cffda60213137f5bd1fb3dd149d2d1d58133a5911c277829f8f7f95b/
Threat name:
Win32.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-08-22 08:44:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
30
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sobyv6gp7wtaeeytp5n5d6z52fe5fuovqez2lei4e54ct6hx7fnq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:f48y rat spyware stealer trojan
Link:
https://tria.ge/reports/220822-lkxn4sghf6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Blocklisted process makes network request
Formbook payload
Formbook
Unpacked files
SH256 hash:
39fe1f4d8a6a1ea85403431ed454d0f0c5b196af8f0836f0c13e4800ebd4a72b
MD5 hash:
ab41e51ffefb3aeb38258da1ee5b726f
SHA1 hash:
b4189e65c59b686529b7ac582840950754501a7b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
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FormBook
Create hunting rule
Link:
https://www.unpac.me/results/f81dc888-cc5a-492a-b6d1-56571f975e87/
Parent samples :
93838af8cffda60213137f5bd1fb3dd149d2d1d58133a5911c277829f8f7f95b
77b910c55fbbd7f039208e66d79081fc98114685535974d5985546aea049d502
4c509e5a6dcc6cf9a2981d5fd6c02d0e55de7e63c5f33713425ed415fbfd2b0f
2de6c19efc14f316864c8245e3db27439515e4f06114e048e1868cfb45153343
SH256 hash:
ceda93fdfce3ad8e4f800d4f2d940d793b68b4b0b254b652bf42e13dbd189ba7
MD5 hash:
786afe844ec1723b635cace747b60efd
SHA1 hash:
fa647a584a7fcad392147a182e3a2435b3ad5bb9
Link:
https://www.unpac.me/results/f81dc888-cc5a-492a-b6d1-56571f975e87/
SH256 hash:
87681fcce8017a80b811389fedb477103698ab0c4fa689db89b4ede2daa849f8
MD5 hash:
7d3832d514c9052550b7ca623b641505
SHA1 hash:
a077573e2285e327acb3a29da66721cf8c447d2a
Link:
https://www.unpac.me/results/f81dc888-cc5a-492a-b6d1-56571f975e87/
SH256 hash:
f0eab9665d72bf9ba67cffd50545232f29debffe1d786338d666e86920e73f0a
MD5 hash:
3c1c5ed01e32f3291acfe92f40834dd9
SHA1 hash:
8b8f2b82693724ece1204d626ecfa1156c140595
Link:
https://www.unpac.me/results/f81dc888-cc5a-492a-b6d1-56571f975e87/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/f81dc888-cc5a-492a-b6d1-56571f975e87/
SH256 hash:
93838af8cffda60213137f5bd1fb3dd149d2d1d58133a5911c277829f8f7f95b
MD5 hash:
3db5f909603e571b42d5b2d846b3f369
SHA1 hash:
6c330dffb9f3f4f9050480cfce8e48ca841d6f9b
Link:
https://www.unpac.me/results/f81dc888-cc5a-492a-b6d1-56571f975e87/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/93838af8cffd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/93838af8cffda60213137f5bd1fb3dd149d2d1d58133a5911c277829f8f7f95b

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:BitcoinAddress
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Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 93838af8cffda60213137f5bd1fb3dd149d2d1d58133a5911c277829f8f7f95b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/300187/

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